242310123491 has 2 divisors, whose sum is σ = 242310123492. Its totient is φ = 242310123490.

The previous prime is 242310123463. The next prime is 242310123547. The reversal of 242310123491 is 194321013242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242310123491 - 2¹⁸ = 242309861347 is a prime.

It is not a weakly prime, because it can be changed into another prime (242310123401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121155061745 + 121155061746.

It is an arithmetic number, because the mean of its divisors is an integer number (121155061746).

Almost surely, 2^242310123491 is an apocalyptic number.

242310123491 is a deficient number, since it is larger than the sum of its proper divisors (1).

242310123491 is an equidigital number, since it uses as much as digits as its factorization.

242310123491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 242310123491 in words is "two hundred forty-two billion, three hundred ten million, one hundred twenty-three thousand, four hundred ninety-one".